A181731 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

A181731 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`1`
`3`		`1`
`4`		`1`
`5`		`2`
`6`		`2`
`7`		`1`
`8`		`6`
`9`		`14`
`10`		`4`
`11`		`1`
`12`		`24`
`13`		`222`
`14`		`106`
`15`		`8`
`16`		`1`
`17`		`120`
`18`		`6384`
`19`		`9918`
`20`		`838`
`21`		`16`
`22`		`1`
`23`		`720`
`24`		`291720`
`25`		`2306904`
`26`		`486924`
`27`		`6802`
`28`		`32`
`29`		`1`
`30`		`5040`
`31`		`19445040`
`32`		`1085674320`
`33`		`964948464`
`34`		`25267236`
`35`		`56190`
`36`		`64`
`37`		`1`
`38`		`40320`
`39`		`1781750880`
`40`		`906140159280`
`41`		`4927561419120`
`42`		`439331916888`
`43`		`1359631776`
`44`		`470010`
`45`		`128`
`46`		`1`
`47`		`362880`
`48`		`214899027840`
`49`		`1224777388630320`
`50`		`54259623434853360`

[1,1,1,1,2,2,1,6,14,4,1,24,222,106,8,1,120,6384, 9918,838,16,1,720,291720,2306904,486924,6802,32,1, 5040,19445040,1085674320,964948464,25267236,56190, 64,1,40320,1781750880,906140159280,4927561419120, 439331916888,1359631776,470010,128,1,362880, 214899027840,1224777388630320,54259623434853360]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 24 11:21 EDT 2024. Contains 371936 sequences. (Running on oeis4.)